CVE Catalog

CVE-2024-27395

HighCVSS 7.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.24%

16th percentile - higher than 16% of all known CVEs

Summary

A vulnerability has been identified in the Linux kernel within the openvswitch module, concerning a Use-After-Free error in the ovs_ct_exit function. The issue arises from improper memory management during list traversal, which may lead to the key being freed during processing.

Risk Assessment

This vulnerability could lead to unpredictable system behavior, including potential crashes or security breaches, jeopardizing the integrity and availability of network services.

Recommendation

It is recommended to update the Linux kernel to the latest version that includes a fix for this vulnerability to minimize risks associated with memory management errors.

Related vulnerabilities

Original NVD description (English source)

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Fix Use-After-Free in ovs_ct_exit Since kfree_rcu, which is called in the hlist_for_each_entry_rcu traversal of ovs_ct_limit_exit, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free. To prevent this, it should be changed to hlist_for_each_entry_safe.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS